Maybe MapQuest or Google from where you'll be leaving, to where you're going, around the time you'll be traveling, and that may give you an accurate commute time. :)
During rush-hour, it will definitely be a long commute (probably an hour or more). You could look to purchase a home in the Tempe or Scottsdale areas - this would cut your commute time yet you would still be in the East Valley and close to Gilbert.
Hope this helps!
There are wonderful homes in the Deer Valley area. I live here myself. I actually worked for a Corporate 100 Company in Deer Valley as well. The commute in Phoenix is not a pretty one on a daily basis. If you want to visit family, I think you would be better off living in the North Valley and commuting to visit them, rather than commuting to work on a daily basis. Based on the other responses, I believe it is hands down. Commuting is awful in this city.
Monday thru Friday if you have the money for gas and car maintenances then go for it. But I wouldn't